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Forums
Engine Discussions
GM Duramax Engines
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01-04 LB7
GM Diesel Engines: 01-04 LB7
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Sticky
Pros and Cons of the LB7
BoostN
Jan 23, 2009
Replies
10
Views
11K
Dec 17, 2009
THEFERMANATOR
Sticky
LB7 FAQ's
Diesel Dually
May 4, 2008
Replies
19
Views
9K
Dec 9, 2009
Heartbeat Hauler
Sticky
Does Your Duramax Tick/Knock?? Read First.
durallymax
Feb 27, 2009
Replies
0
Views
5K
Feb 27, 2009
durallymax
J
Lb7 tune
Josh44
Dec 19, 2020
Replies
7
Views
277
Dec 22, 2020
Josh44
J
O
2001 lb7 bov install
Old grey
Nov 4, 2020
Replies
1
Views
319
Nov 5, 2020
Will L.
M
New Vacuum pump installed, instant black smoke/ loss of low end power ???
Mikesv1957
Jun 28, 2020
Replies
2
Views
1K
Jun 29, 2020
WarWagon
Bad injector or bad motor?
Landon730
Jun 24, 2020
Replies
11
Views
772
Jun 27, 2020
THEFERMANATOR
J
Vacuum test.
JSC
May 3, 2020
Replies
2
Views
905
May 4, 2020
Rockabillyrat
J
Low fuel rail pressure
JSC
Apr 24, 2020
Replies
16
Views
1K
May 1, 2020
THEFERMANATOR
Duramax LB7, the fussiest diesel on earth!
MetalMaineak
Apr 14, 2020
Replies
9
Views
960
Apr 20, 2020
THEFERMANATOR
Looking for Efi llive tune
04zf6
Mar 20, 2020
Replies
8
Views
1K
Apr 1, 2020
THEFERMANATOR
Allison throwing 30 codes and pulling odd
Landon730
Mar 7, 2020
2
Replies
21
Views
2K
Mar 14, 2020
THEFERMANATOR
J
Lb7 smokes at idle
Jimmykemp12
Nov 24, 2019
Replies
4
Views
2K
Nov 28, 2019
THEFERMANATOR
P
Things to look for when buying?
packratt
Nov 20, 2019
Replies
2
Views
1K
Nov 27, 2019
btfarm
2002 LB7 won't start. Low fuel rail pressure
Nick 6.5
Jun 24, 2017
Replies
14
Views
12K
Oct 10, 2019
MetalMaineak
D
Lb7 heads replaced engine ran but filled the crank case with diesel pulled right side valve cover return line leaking changed washers and reasembled
David sehorn
Sep 19, 2019
Replies
8
Views
1K
Sep 21, 2019
THEFERMANATOR
friend broke down lb7
Will L.
Sep 14, 2015
Replies
3
Views
2K
Sep 20, 2019
Will L.
O
Battery cable installation newbie
OleBeezus
Aug 18, 2019
Replies
6
Views
2K
Aug 20, 2019
OleBeezus
O
0
105 alternator change to 130 ampere alternator
0Eric
Aug 14, 2019
Replies
0
Views
1K
Aug 14, 2019
0Eric
0
Dreaded injector knock
Landon730
Jul 18, 2019
Replies
9
Views
2K
Jul 20, 2019
Landon730
LB7 eating serpentine belts
Landon730
Jun 24, 2019
Replies
9
Views
2K
Jun 26, 2019
Landon730
No boost
Landon730
May 23, 2019
2
Replies
38
Views
3K
Jun 12, 2019
Landon730
SAC00 hopefully the LB7's savior
THEFERMANATOR
Mar 22, 2019
Replies
3
Views
3K
May 17, 2019
THEFERMANATOR
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